From: | Joshua Drake <jd(at)commandprompt(dot)com> |
---|---|
To: | "Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> |
Cc: | Bill <pg(at)dbginc(dot)com>, "Steve Atkins" <steve(at)blighty(dot)com>, "pgsql-general General" <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: MySQL LAST_INSERT_ID() to Postgres |
Date: | 2008-08-28 22:18:15 |
Message-ID: | 20080828151815.59ef670c@jd-laptop |
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Lists: | pgsql-general |
On Thu, 28 Aug 2008 16:06:14 -0600
"Scott Marlowe" <scott(dot)marlowe(at)gmail(dot)com> wrote:
> On Thu, Aug 28, 2008 at 3:38 PM, Bill <pg(at)dbginc(dot)com> wrote:
> > I am new to PostgreSQL but it seems to me that lastval() will only
> > work if the insert does not produce side effects that call
> > nextval(). Consider the case where a row is inserted into a table
> > that has an after insert trigger and the after insert trigger
> > inserts a row into another table which has a serial primary key. In
> > that case I assume that lastval() will return the value from the
> > serial column in the second table.
>
> No, setval, currval, and lastval all require as an argument a sequence
> name. So the real issue is you have to know the sequence name to use
> them.
lastval() does not take a sequence name.
Joshua D. Drake
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